Older age is the main risk factor for cancer. This largely reflects cell DNA damage accumulating over time. Damage can result from biological processes or from exposure to risk factors. This page covers other factors with the best evidence of an association with cancer risk; this list is not exhaustive. See our other pages for general information about cancer, or ways to reduce your risk.
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Find out more about the sources which are essential for our statistics
Lifetime risk estimates calculated by the Cancer Intelligence Team at Cancer Research UK 2023.
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